Improvement in fruit-jak cover



@itineraire @anni ffr.

Letters Patent No. 82,884, dated October 6, 1868; antedated September26, 1868.

IMPROVEMENT IN FRUIT-JAR COVER.

dlgs rlgehule' :stemt tu im time lettert rrtent tnt mating mi nt tigestmt.

TO ALL WHOM I'I MAY CONCERN: I

Be it known that I, JOHN SIDDONs, of the city of Rochester, in the Stateof New York, have invented o new and useful Improved Fruit-Jar Cover;and I do hereby declare that the following is a full, clear, and exact`description thereof, reference being'had'to the accompanying drawing,making part of this specification, in

which the drawing is atransverse section of the same, showing myimprovement.

The nature of this invention consists in an improvement in jar-covers,consisting of two metal disks joined together. I

To enable others skilled in the art to make` and use my invention, Iwill proceed to describe its construction and operation. v

The originalcovers in this class are made by joining two disks of metal,a and b, together, having a corrugation in each, a. sufficient distancefrom the periphery to form a. shoulder when together, for the rubberpacking.

My improvemement consists in adding one or more corrugations` shown at oon one of the.disks. This forms 'a shoulder, which its ou the inside ofthe corrugation 'in the other disk, shown at e in the drawing.

The object of this device is to facilitate the manufacturing, therebyproducing cheaper covers than the zoriginal.

By the extra corrugations, the centres of the disks are more easilyadjusted when they are put together,

and the periphery of each disk is brought to its relative position,without any trouble, thereby allowing the rubber packing to bear on theoffset in the neck of the jar, which is not the case if the centres ofthevdisks do not register.

In the original covers there is a great diiculty-in getting the disks intheir proper places, and holding `:hem so while soldering together, butbymy arrangement they adjust themselves on beingjoiued together, and-`when-adjusted, the shoulder formed by my extra corrugation in one disk,tting inside of theshoulder formed by the corrugation in the other,makes it easy to hold them while soldering.

vIt might be desirable to form two or more indeptations instead'ofcorrugations.

. What I claim, and desire to secure by Letters Patent, is

Providing fruit-jar covers, consisting of two metal disks, a b, witha'corr'ugation, c, or its equivalent, for the purposes herein set forth.

JNO. SIDDONS.

Witnesses:

JAS. LORENZO GAGE,

WM. S. LoUoHBoRoUGH.

